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4jf4

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{{STRUCTURE_4jf4| PDB=4jf4 | SCENE= }}
 
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===OXA-23 meropenem complex===
 
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{{ABSTRACT_PUBMED_24012371}}
 
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==About this Structure==
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==OXA-23 meropenem complex==
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[[4jf4]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Acinetobacter_baumannii Acinetobacter baumannii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JF4 OCA].
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<StructureSection load='4jf4' size='340' side='right'caption='[[4jf4]], [[Resolution|resolution]] 2.14&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4jf4]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Acinetobacter_baumannii Acinetobacter baumannii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JF4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4JF4 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.14&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MER:(4R,5S)-3-{[(3S,5S)-5-(DIMETHYLCARBAMOYL)PYRROLIDIN-3-YL]SULFANYL}-5-[(2S,3R)-3-HYDROXY-1-OXOBUTAN-2-YL]-4-METHYL-4,5-DIHYDRO-1H-PYRROLE-2-CARBOXYLIC+ACID'>MER</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4jf4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jf4 OCA], [https://pdbe.org/4jf4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4jf4 RCSB], [https://www.ebi.ac.uk/pdbsum/4jf4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4jf4 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q9L4P2_ACIBA Q9L4P2_ACIBA]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Dissemination of Acinetobacter baumannii strains harboring class D beta-lactamases producing resistance to carbapenem antibiotics severely limits our ability to treat deadly Acinetobacter infections. Susceptibility determination in the A. baumannii background and kinetic studies with a homogeneous preparation of OXA-23 beta-lactamase, the major carbapenemase present in A. baumannii, document the ability of this enzyme to manifest resistance to last-resort carbapenem antibiotics. We also report three X-ray structures of OXA-23: apo OXA-23 at two different pH values, and wild-type OXA-23 in complex with meropenem, a carbapenem substrate. The structures and dynamics simulations reveal an important role for Leu166, whose motion regulates the access of a hydrolytic water molecule to the acyl-enzyme species in imparting carbapenemase activity.
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==Reference==
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Structural Basis for Carbapenemase Activity of the OXA-23 beta-Lactamase from Acinetobacter baumannii.,Smith CA, Antunes NT, Stewart NK, Toth M, Kumarasiri M, Chang M, Mobashery S, Vakulenko SB Chem Biol. 2013 Sep 19;20(9):1107-15. doi: 10.1016/j.chembiol.2013.07.015. Epub, 2013 Sep 5. PMID:24012371<ref>PMID:24012371</ref>
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<ref group="xtra">PMID:024012371</ref><references group="xtra"/><references/>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4jf4" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Beta-lactamase 3D structures|Beta-lactamase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Acinetobacter baumannii]]
[[Category: Acinetobacter baumannii]]
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[[Category: Beta-lactamase]]
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[[Category: Large Structures]]
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[[Category: Smith, C A.]]
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[[Category: Smith CA]]
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[[Category: Toth, M.]]
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[[Category: Toth M]]
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[[Category: Vakulenko, S B.]]
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[[Category: Vakulenko SB]]
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[[Category: Beta-lactamase]]
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[[Category: Hydrolase-hydrolase inhibitor complex]]
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Current revision

OXA-23 meropenem complex

PDB ID 4jf4

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